Gas-producer.



(No Model.)

Patented Aug. 6, l90l. A. B. CALDER.

GAS PRODUCER.

Application filed Nov. 20, 1900.)

2 Sheets-Sheet l.

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No. 679,885. Patented Aug. 6, IBM. A. B. 'CA'LDER. GAS PRODUCER. (Application filed Nov. 20, 1900. (No Model.) 2 Sheets-Sheet 2.

: Noam: vmns 00., PNOTOAJTNO wAsume'on a c UNITED STATES PATENT OFFICE.

ARTHUR RUSSELL CALDER, OF STEELTON, PENNSYLVANIA.

GAS-PRODUCER.

srnoztroazrton formingpart of Letters Patent No. 679,885, dated August 6, 1901. Application filed November 20,1900. Serial No. 37,142. (No model.)

To to whom it may concern:

Be it known that I, ARTHUR RUSSELL CAL- vDER, a citizen of the United States, residing at and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form apart of this specification.

This invention relates to gas-producers, and has for its object means for dumping the ashes therefrom without the use of auxiliary and troublesome temporary grate-bars to support the bed during dumping,'said devices lo,- cated below the line of air-supply and organized to dump, when desired, definite quantities of ash into the ash-pit.

Referring to the drawings, in which like parts are similarly designated, Figure 1 is a vertical section through a producer constructed in accordance with this invention. Fig. 2 is a section on line A A, Fig. 1. Fig. 3 is aside View of a dumping member. Fig. 4: is one of the removable sections of a dumping member, and Fig. 5 is a section of a producer, showing the dumping members eutirelysubmerged in the water-sealed ash-pit.

The masonry body 1 of the producer is lined with fire-brick 2 and is provided with the usual charging-opening and gas-exit.

In the lower portion of the producer is located the so-called draft-cone, shown as a prism 5, with its air-duct 6. This prism 5 is located centrally through the lower part of the producer and is provided with perforations 11, through which air passes up into the burning charge. This device for supplying air, whethera cone or a prism, in this case and in many furnaces supports the greater part of the charge, dispensing with the use of a grate. Supporting this prism are bars 7, held in the producer-walls at each end, and suspended from said bars 7 are brackets 8, supporting the inner ends of the rotary dumping members 10, the outer ends of said dumping members being supported in suitable plates or brackets 9, built in orotherwise attached to the producer-walls.

Below the producer is the ash-pit 4c, organized to form a water seal to prevent air from passing up under the charge and at the same time allowing the removal of ash from said pit at any time without admitting air. This pit is divided by a ridge 3 into two parts, each of which takes the ash dumped from that side of the cone above it. The dumping members 10 dip into and are cooled by the water forming the seal in the ash-pit 4. These dumping members 10 are each composed of a square bar 23, having round surfaces 20 at each end, that have bearing in the brackets 8 and 9, respectively, the outer end of said bar being squared at 21 for the reception of a handle or key 26, by which each can be rotated. On this bar 23 are threaded side by side star-shaped dump elements 24, each here shown as having four arms and each arm cast or made integral with the central side ribs 25.

Itwill be observed that each dumping member in no sense forms a grate, no air being allowed to pass through them, and they are located below the zone of combustion and below the point where air is fed into the producer and simply act as a partial support for the ashes and as a means for positively forcing the ash into the pit. These dumping members are arranged side by side across the producer between the draft cone or prism and the outer walls of the producer. The bed of ash rests on them, and when they are rotated by means of the handle 26 the vertical arms force the ash resting between them and the horizontal arms down into the ashpit, thus discharging a regulated quantity of ash from under the entire discharging-surface and not allowing the whole charge to drop into the ash-pit. A further advantage is that the ash is not continually falling into the ash-pit during the emptying of it, which is the case when no ash-discharger is used, and in which case it frequently happens that only the outer portion of the ash can fall into the pit, for the reason that as fast as the workman cleans out the front of the pit the ash falls, while the ash near the center and draft-cone is seldom taken out.

The improved construction does away with the troublesome and laborious use of auxiliary grate-bars driven into the charge above the draft-cone when ash is taken out, often causing the discharge of unconsumed material and in many cases the dropping of the entire charge when the workman fails to make the inner end of the auxiliary grate-bars rest upon the interior ridge or supporting member. The improved construction also permits the building of a much larger producer and its operation with an expenditure.

of less labor than those now in use.

I do not limit myself to the particular details of construction set forth, as these may vary according to requirements. The starshaped elements may have more or less than four arms, and with a slight alteration of parts of the-body of the producer the dumping members can be entirely submerged, and during the operation of the producer it is of course understood that the height of the water-level will Vary.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent, is I 1. In a gas-producer, the combination with a draft cone, of independently-rotatable dumping members located below the line of draft and whose parts that support the ash are arranged to rotate through the sealing liquid, substantially as and for the purpose set forth.

2. In a gas-producer, the combination with a draft device and a water-sealed ash-pit, of a rotatable dumping member composed of star-shaped elements threaded on a rotatable bar, the arms of said star-shaped elements arranged to rotate through the sealing liquid in the ash-pit, substantially as and for the purpose set forth.

3. In a gas-producer, the combination with acentrally-located draft-prism, of independently-rotatable dumping members arranged on either side of said draft device, substantially as and for the purpose set forth.

4. In a gas-producer, the combination with a centrally-located draft prism or cone, and a water-sealed ash-pit, of rotatable dumping members dipping into the water seal, substantially as and for the purpose set forth.

'5. In a gas-producer, the combination with a centrally-located draft prism or cone, and a Water-sealed ash-pit, of independently-rotatable dumping members located below the line ofdraft and organized to positively discharge the ash into said pit, substantially as and for the purpose set forth.

6. In a gas-producer, the combination with a draft-prism and a water-sealed ash-pit, of rotatable dumping members located below the line of draft and comprising a bar, four-armed elements threaded thereon, the arms of said elements to pass through the sealing liquid in the ash-pit when the member is rotated, substantially as and for the purpose set forth.

7. In a gas-producer, the combination with a central-draft supply device, of rails supporting said device, brackets depending from said rails and brackets depending from the sides of the producer and independently-rotatable members between the inner and outer brackets, substantially as and for the purpose set forth.

8. In a gas-producer, the combination with a water-sealed ash-pit, of a centraldraft prism, supporting-rails on either side of the base thereof, brackets hung from said rails, A

and brackets at the sides of the producer,

dumping members journaled in said brack- 9. In a gas-producer, the combination with V a central-draft prism and a water-sealed ashpit, of independently rotatable dumping members located below the line of draft and comprised of a rotatable rod and star-shaped members threaded thereon, the arms of said members arranged to be submerged in the sealing liquid of the ash-pit when rotated, substantially as and for the purpose set forth.

10. In a gas-producer, the combination with a central-draft device, means for supporting said device centrally in the producer, of rotatable water-cooled dumping members supported at one end from the sides of the producer and at the other from the means for supporting the draft device, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

ARTHUR RUssELL CALDER.

Witnesses:

ARTHUR A. SMITH, ARTHUR G. FORSTER. 

